Machine for making wire goods.



No. 830,018. PATENTED SEPT. 4, 1 9O6.

' H. L. SMITH.

MACHINE FOR MAKING WIRE GOODS.

APPLICATION FILED MAY19, 1905.

7 SHEETSSHEET 1.

No. 830,018. PATENTED SEPT. 4, 1906.

H. L. SMITH.

MACHINE FOR MAKING WIRE GOODS.

APPLICATION FILED MAY19,1905.

'7 SHEETSSHEET 2.

PATENTED SEPT. 4, 1906.

H. L. SMITH. MACHINE FOR MAKING WIRE GOODS.

APPLICATION FILED MAYIQ. 1905.

7 SHEETS-SHEET 4.

NO- 880,018. PATENTED SEPT. 4, 1906. H. L. SMITH. MACHINE FOR MAKINGWIRE GOODS.

APPLICATION FILED MAY19.1905.

' 7 SHEETSJSHEET' 5.

PATENTED SEPT. 4, 1906. H. L. SMITH.

MACHINE FOR MAKING WIRE GOODS,

APPLICATION FILED MAY 19,1905.

7 SHEET.SSHEBT 6.

72 vezzjor': M4. and;

No. 830,018. PATENTED SEPT. 4, 1906. H. L. SMITH.

MACHINE FOR MAKING WIRE GOODS.

APPLICATION FILED MAY19, 1905.

7 SHEETS-SHEET 7.

UNITED STATES PATENT orrron.

HERBERT L. SMlT H,-OF CLINTON MASSAUHU SETTS, ASS1GNOR TO CLINTON I WIRECLOTH COMPANY, OF CLINTON, MASSACHUSETTS.

MACHINE eon MAKENG WEREGOOD$.'

To all whom it may concern.-

Be it known that I, HERBERT'L. SMITH, of

. Clinton, in the county of Worcester and State of Massachusetts, haveinvented certain new and useful'lmprovements in Machines for Making WireGoods, of which the following is a specification. i

This invention relates to a new and improved machine for makingwirefabric.

Figure 1 is a cross-sectional view of a machine constructed inaccordance with my invention, the View being taken on line 1 1 of Fig.2, showing, in effect, the end elevation of the operating mechanism ofthe machine, particularly that for effecting the welding and foreffecting the placing ofth'e stay-wire. Fig. 2 is a top plan view of somuch of the mechanism as .is necessary .to illustrate the operation ofthe circuit-closers in connection with the operation of thewelding-jaws, this view being taken on line 2 2 of Fi 1 looking in thedirection of the arrows. Fig. 3 is a detail view showing, in frontelevation, thetwo main shafts of the |machine and the parts carried anddriven by said shafts. Fig. 4 is a detail view showing the intermittentgears for driving the shaft that operates the plungers of the rearwelding-jaws. Fig. 5 is a detail view of the intermittent gearsoperating the' plunger-rail that carries the front weldingjaws. Fig. 6is a cross-sectional view on line 6 6 of Fig. 5 looking in the directionof the arrows, showing the arrangement of the shaft that drives theplunger of one of the rear welding-jaws and also showing the gear andeccentric for driving. the plunger-rail that carries the frontwelding-jaws. Fig. 7 is a detail cross-sectional view of the frontplunger-rail, taken on a plane represented by line 1 1 of Fig. 2 andshowing one of the front welding-jaws and its spindle, the samesectional view appearing in Fig. 1. Fig. 8 is a detail view of a part ofthe front of the plunger-rail, showin the method of mounting the spindleof one of the front welding-jaws. Fig. 9 is a cross-sectional view, online 9 9 of Fig. 8. Fig. 10 is a cross-sectional view of the breakswitchgirth, taken on the plane represented by the line 1 1 of Fig. 2, thesame sectional view appearing in Fig. 1. Fig. 11 is a sectional viewonline11 11 of Fig. 10-, sh0wing the-method of mounting one of thecontact= points and its latch. Fig. 12 isa detail dia-' .grammatic viewof the circuits.

Fig. 13 is a Specification of Letters Patent. \pplication and ma19,1905. Serial 110. 281,110.

Patented. Sept. 4, 1906.

diagrammatic view showing the transformer and its primary-circuitconnection, showing the welding or secondary circuit and the connectionof the welding-j aws with the welding or secondary circuit, and showingthe ma netcircuit. F g. 14 1s a detail view, in side e evation andpartly in section, showing one of the break-switches for the primarycircuit open.

Fig. 15 is a like view showing said primarycircu'it-break switch closed.Fig. 15 is a detail perspective view, partly in section, showing one ofthe break-switch latches, its operating bell-crank, and framework orcasting.

Fig. 16? is a like view with the framework or casting. Fig. 17 is adetail viewshowing, in perspective and detached, the casting orframework for the latch and bell-crank shown assembled in Fig. 16. Fig.18 isa perspective view showing the contact members carried by the frontwelding- 'aws that close and open the circuit of the reak-switch magnetdetached and separated from one another. Fig.

19 is a detail perspective view of one of the rear welding-jaws and itsplunger or spindle.

Fig. 20 is a detail perspective view of one of' the front welding-jawsand its plunger or spindle. Fig. 21 1s a detailperspective view showingone of the position-blocks supporting the front end of a frontplunger-spindle, Fig. 22 is a detail perspective view of one ofthebreak-switch frames. Fig. 23 is a detail view of one of the break-switchcontact points and its bushing. Fig. 241 is a detail wires 2 consistsof'a toothed wheel 34, carried on and driven by a shaft 35 in anydesired way. Such toothed driving-wheel and its operating mechanism isnot new with ap licant. (See patent to John C. Perry, 0. 633,213.) 1

While 1 have shownin the drawings but one strand-wire 2, it is to beunderstood that I may em loy as many strand-wires as I desire, thereeing employed a toothed wheel 34 for each st-rand wire, each toothedwheel opof the 1 iii 1 ereting not only to drew its strand-wire 2 intothe machine, but also to drsw ssid strendwire through thestraightening-rolls 36.

The SttY-WlFQ 3 may be fed into the holders 4 by hend or in any desiredWey. Thereafter the jaw is on the end of the lever 5 is operated bymeans of the levers 6 end 8 and their connections to remove the Wirefrom the receiver and carry it to the position shown in Fig. i egeinstthe strand-Wire 2, Where it is grasped by the Welding-jaws.

In piece of form oi stey-wire-teeding mechanism any other form could heemployed. The meen shown for feeding the strand-Wires 2 or the meensshown for feeding the stay-Wire 3 not new with sppliosnt and may hereplaced hy any preferred form of feeding mesns. l /ly invention isaddressed to another Lhe snecnic ioim oi shown. is that discloses. and

nt to John ry llo. specific for..- of ste wire end cleimed T1 n I figs.2- rmounted in W M EU or pulley on. one end O). ens i. which applied tosaid shr': 'itehie counts heft or motor.

deferr ng to 32 moresents on. interm "om any ittent gesr rigidly mountedupon the slits-it l0. represents o compiemental intermittent gearrigidly mounted upon s shaft '14, that is err-singed suitshle hearingsin the rear of the machine shove the shaft 19. Tl e teeth and dwellspsces in the periphery of the two goers 12 end 13 are so arranged thatthe gear 12 is driving the gear 13, and consequently the she-ft 14,during eech half-revolution of the gear 12, While during the otherhalf-revolution of the gear 12 the letter is holding the gesr 13 and theshaft 7 stationery. I

20, Figs. 2,3, and 5, represent two compenion intermittent gears rigidlymounted upon the shaft it) inside the framework. These geers'eech meshwith it complements]. intermittent geer 21 21, respectively. Each of thegoers 21 21, Fig. 6, is rigidly mounted upon e sleeve, 25, that turn isloosely errsnged on the shaft 14s The peripheries of the gears 20'sndcompanion gesrs 21 are so errenged with teeth and. dwells that the goers20 hold the gears 21 egeinst motion during half. oftherevolutionof'gesrs 20, then turn the gears 21 during onesixth of; atrevolution. of. the genre 20, then hold the gears 21 against motionduring one-sixth of a. revolution of the gears 20, then. drive the goers21.

' diiring ono-sirrth of a revolution of gears 20,

the work of the periphery of the gears 20 being ssonis represented layone hundred and eighty degrees dwell, followed h y sixty degrees drive;sixty degrees dwell, sixty degrees dri e. in the order stated. The onehundred and eighty degrees dwell of the gears 26 is timed to notsimultaneously with the one hundred 1 end eighty degrees of gear-teethor drive of .the gear 12, while the one hundred and eighty degrees dwellof the ges'r 1 2 is timed to act with the one hundred and eighty degreesof the goers 20, that is made up of sixty degrees drive, sixty degreesdwell, followed by sixty degrees drive in the order stated.

26 26 represent tWo eccentrics, one beside eschgetzr i and in likemanner rigidly mount ed upon: a sleeve Upon each eccentric 26 is god eneccentric-strep 27, each provided with arm 28.-

Y 42 r i r 1. 1.; {3 4 4' arranged he the .iront cie rns- I nc andsupported upon ways or guides ii st eech end moo inc and at the frontThe ends of tr ods nivoted ears 42 on the reel. owe the shown in dottedines in. Fig. 5. this posigirth by this errengeinent mined se ies ofgiven to rsngement Tl gs. i, 2, 5, and 7, it} repretion the girth willhe held for the sixty degrees oi (lW-Bll of the goers 20. During thissixty dwell of the geer'iZO the various meohenisms of the machineoperete to feed the strand-wire, feed out the stsywvire, and place itagainst the strand-Wire, as shown in i. Thereafter the second sixtydegrees oi teeth of the geer 28 engage the goers 21, causing a movementof the girth d0 inwsrd, the girth being held in its innermost positionor fulhline position in Fig. 5 during the one hundred end eighty degreesof dwell ot'the goers 20. it is during this letter position that theWelding operation"- occurs. in the front girth 40 is errenged a. seriesof plungers 43, Figs. 7, 8, 9, 13, end 20. The central pert of each.plunger 43 is cylindricsl. reduced, as at 46, Fig. 21, represents a.block, there beingone for esch'front plunger 43. These blocks 46 arearranged in suitable longitudinal grooves 237 in the rsil 40. (See Fig.7.) Each block. is formed with it reduced squaredfront lug 47, arrangedin a slot 48 on the front of rsil 40, that forms an extension of thegrooves 47. By this construction theblocks 46, with their lugs 47, earnbe slid lengthwise of the machine to sny desiredpoint and then securedby means of s. set- The front end of each plunger 43 is screw 49 passingdown through a part of the rail and entering a suitable aperture 50 inlug 47. Each block 46 and its lug 47 is formed with a hole 45,, slightlylarger than the reduced part 44 of each plunger 43, the extension 44 ofeach plunger43 being arranged in said aperture 45 and adapted to theother end bearing against the rear end 54 of the head 56 of the plunger.When the nut 51 engages the front side of complemental block 47, thespring 53 will be under a rede termined compression. When the p unger 43is forced back against the tension of the spring 53, due to the presenceof the parts to be welded between the two welding-jaws, said spring 53will then be under, an additional com ression suflicient to force itsplunger 43 orward upon the softenin of the material, after the mannerset forth in the before-mentioned patent of John 0. Perry, No. 813,823.As shown, the head 56 of each lunger is squared and engages the upperand ower walls of a complemental longitudinal slot 57 in the rear wallof rail 40, the slot 57,

the grooves 47", and the slot 48 forming continuations of chamber 58,that runs lengthwise of plunger-rail 40 between its ends. A pin 60 ontop of each head 56 is arranged in a suitable vertical slot formed intherear side of plunger-rail 40 and prevents a lateral movement of thehead 56 and parts carried thereby. To each head 56 is rigidly secured acopper block 70, the latter being insulated from the head 56 by means ofinsulating material 71.

72 represents the front welding-j aw roperly secured tothe frontof thecopper lock in any desired way, the face of the front welding-jaw beinggrooved, as shown, in order to receive the cross and stay wires, Fig.

13. In a recess on the side of each head 56 is secured a casting 76,Fig. 18. Casting 76 carries a boss 77, formed with-a longitudinal hole78. The boss 77 is formed with a rear.

projecting fiat strip 79.

80 represents a contact-spring secured on the end of that part of thecasting 76 that carries the boss 77, spring 80 being arrangedsubstantially over the hole 78.

represents a rod the front end of which has screw-threads, as at 92 andis arranged in a fiber or insulating block 93.

94 represents a plate of conducting matcrial carried by theinsulating-block 93 and secured thereto in any desired way. This plateis formed with a rojecting finger 95, which lies on the'top of filoek93. The plate -n1g with the front plungers 43.

94 is also formed with a lug 96 on its under side carryinga set+screw 97for connecting a wire 2 in circuit with plate 9 4 and its finger 95. Therear end of each rod 90 is arranged in the recess 99 in an car 100,formed on each lug 47. (See Figs. 8, 9, 21.) i

98 representsa shoulder or collar. rigidly secured on the rod 90,engaging a' complemental shoulder in the recess 99 and serves to limitthe inward movement of the rod 90. The front end of the rod 90 isslotted, as at 101, for rotating the rod 90' to adjust the fiber block93. 102 represents a nut loosely arranged about'the-end of the rod 90.This nut 102 is formed with screw-threads on its periphery that engagecomfplemental screwthreads on the inner wall 0 the hole 99. A spring 103is arranged in the hole99 about the rod 90, between the collar 98 andthe adjustable nut 102. By this arrangement the block 94 with its fingeris so positioned on the rod 90 with reference to the contact part, 106on the end of the under side of the spring the front welding-jaw 72, dueto the upset:

ting action of the spring 53, where it is desired to have the weldingaction stopped. The movement given to the girth 40, as heretofore setout, is independent of the movement given to the plungers 43 by meansofthe spring 53. The movement given to the plungers 43 by means of thegirth 40 isto separate the front welding jaws from the rearwelding-jaws, to permit the feed of the material, the placing of newparts, and to also effect the closing action of the front jaws upon theparts to be welded. As' each rear welding-j aw is forced up to grip thework between it and its complemental front weldingjaw, this grip of theparts to be welded serves to put the springs 53 under additionalcor'npression, each spring 53 forcing its nut 51 outwardly a suflicientdistance to efiect the desired amount I of upsetting motion to theplunger of the front welding-jaw.

Referring to Figs. 2,10, 13, 14, 15, and 19,

120 re resents a rear welding-jaw lunger, there eing of course a rearwel ing-jaw for each front welding-jaw and each connect- The rear end124, adaptedto be engaged by a complemental'cam'125 on the shaft 14.While in Fig. 2 I

only four lungers are shown, it is to be understoo that there will beany number of lung'ers desired in the machine,correspond In the formshown in Fig. 2 the cams on the shaft 14 the plunger-rails 120--.move.

are staggered in such a way that a particular cam 125 will engage itscomplemental roller and leave it, or, in other words, will force forwardits complemental plunger and per mit it to return before another camengages its complemental roller. It will thus be evident that while thefront plungers 43 are all brought forward simultaneously and the strandand stay wires forced into recesses in the front welding-j aw 72 thecomplemental or rear welding-jaws are brought up singly in the form ofmachine here shown, a though they might be brought up in groups or asotherwise desired. In the form shown in Fig. 2 the plunger 120' at theleft has been advanced to effect the welding operation at that point-The other plun ers 120 are at their rear position. Each 0 the plungers120 is formed of two side bars spaced apart sufficiently to receive aspring 126. The rear end of this spring is arranged in a suitable recessin the rear end of the plunger, while the front end of this springengages a plate 127, arranged between the twd side bars of the lungerand held at its ends in the Walls 0 the slot in the casting 123 in whichBy this arrangement as a plunger is forced forward by'means of the cam'125 the spring 126 is compressed, and as the cam 125 leaves itscomplemental roller 124 the spring 126 moves the plunger 120 to its rearposition.

Referring to Fig. 19, to the top end of extension 122 is secured acopper block 133,

suitably insulated from said extension 122 by means of insulatingmaterial 134. To the front face. of the copper block 133 is secured therear welding-j aw-135, by means of a clamp 136, like the clamp 136 onthe front weldingjaw, Fig. 20. 7 Referring to Fig. 10, 137 represents alug secured at the top of each extension 122. This lug 137 is formedwith ears 138. In these ears 138 is arranged a screw 139 withscrew-threads between the ears 138. One end of the screw 139 is formedwith a slotted head 140, while the other end of the screw projectsthrough the ear 138 and may be secured from dis lacement by a cotter-pinor in my other wel known way.

1 11 re resents a block, formed witha screwthreade aperture and in whichis arranged the screw 139. By turning the screw 139 front of the girth123.

the block 1 10 can be adjusted to any desired position between the twoears 138.

142 represents a spring arranged on the screw 139 between lolock M0 andone of the ears 138 in order to take up lost motion.

1 13 represents a finger formed on the top of block 141 and having itsoperating-face toward the front of the machine.

represents a rail or girth extending lengthwise of the machine above andjust in This girth 160 on its acacia lower face is formed withdovetailed flanges 161 upon which isarranged a series of clamps 1 62,maintained in the desired position of adjustment lengthwise of themachine and over a plunger 120 by means of a set-screw 163. From theunder side of the front end of each bracket or clamp 162 projects adownwardlyextending arm 164, in which is formed an aperture 165 toreceive a bushing 166 of insulating material. In t 's bushing isarranged a barrel 167 formed with a contact-point 168, the barrel 167being adapted to move back-and forth in the chamber of the bushing 166.I v

169 represents a reduced extension of the barrel 167 and extends outthrough the rear end of bushing 166.

170 represents a spring arranged in the bushing 166 about the extension169 between the inner end of the barrel 167 and the end of the bushing,this spring tending to yieldingly resist movement of the contactpoint168. The end of the extension 169 IS slotted, as at 171, in order toreceive a wire as of the primary circuit.

172 represents a nut arranged u on the threaded end of the extension 169an adapted to pinch and hold the wire ac in place in maintaining thepinrigidly in position.

180, Figs. 17 and 25, represents two arms connected at their top by aperforated hub 181. Each of the arms 180 at their lower ends carry a hub182 182, connected by a web 18 1, that in turn is formed with aperforated boss 185, midway between the arms 180. The arms 180, hub 181,web 184, and boss 185 constitute a movable carrier-frame for arigidly-mounted contact-point. In the boss 181 is arranged a spool 186of insulating material. 187 represents a contact-point formed with anenlargement or collar 188.

189 represents a reduced stem of the hub 188, arranged in the spool 186.The end of this stem is screw threaded and formed with a slot 190, inwhich is arranged a wire a of the primary circuit. 191 represents a nutarranged upon the end of the extension 189 and pinching the wire atbetween the sides and end of the slot 190, nut 191, and a-washer 192,arranged on the extension between the wire as and one end of the spool186.

193 represents a washer between the opposite end of the spool 186 andthe inner end of the hub 188.. Each of the bosses 182 is arranged uponone of the pins 178 and free to slide thereon.

19% represents a coiled'spring on each pin TIC 178 between the innerside of boss 182 and the boss 176, the said spring tending to move theboss 182 away from the boss 176.

200, Fig. 16, represents a cylindrical latch arranged in the hub 185,formed with'an operatingface 201 arranged toward the rear of the machineand'adapted for engagement for each bell-crank 204.

with the operating-face of the latch 143, Fig. 10. The latch 200isformedwith an upwardly-projecting stem 202, arranged between the arms 180. Theupper end of the extension 200' is slotted, as at 203.

204 representsa bell-crank lever pivoted at 205 between two parallellugs 206 206, that project downward from the bottom of the clamp orbracket 162 and at the rear end thereof. lhe horizontal arm 207 of each.

beil-crank 204 is arranged in the slot 203 of the stem 200 beneath thepin 208, the end of the bell-crank having a slight play inthe slot 203lietween the pin 208 and the bottom of the 0t.

209 represents a lug. on the arm 207 back of'the point where said armengages the pin 208 in order-to hold the hubs-182 on their respectivepins 178 when the. end of the arm 207 rises to lift thelatch 200 out ofengage-- net has one of its poles opposed to and in op-- erativeposition to its 'cornplemental keeper 210,, so that when the bell-crank204 is in" the position shown in Fig. the latch 143 is in engagementwith the latch 200. If new the magnet be vitalized, it will attract itsarmature, lifting the horizontal arm 207 of the bell-crank and the latch200 out of engagement with its latch 143, Fig. 1.4. -As shown in Figs.10, 11, the wires 02' are supported by the ends of their respectivecontact-points, 7

wires a: forming a part of the contact-point. 220 represents an armextending upward from the rear side of each'clamp 162 and formed on itsend with a hub 221, in which are arranged two bushings 222 of insulatingmaterial. In these bushings 222 is arranged a wire bus-rod 2, comprisingthe magnet-circuit.

2 represents a wire running from the wire or bus-rod z to each magnet211.

.2 represents a wire of the magnet-circuit running from each magnet to abindingscrew 97 on the plate 94. (See Figs. 13 and 18.) Themagnet-circuits and their complemental makeand-break mechanism are showndiagrammatically in Fig. 12, from which it will appear that the wires .2are givenone or more turns around the core of the transformer andreceive therefrom an induced current.

copper bar 303.

i 300 represents a transformer suitably mounted in the framework of themachine at the bottom and one side thereof, the transchine. Thesecondaryor Welding coil of the transformer terminates in twocopper arms or bars301 302, extending crosswise of the former being suitably insulated fromthe ma machine and at the bottomthereof, and the bar 301 stands directlybeneath the front welding-jaws, while the bar 302 stands parallel withthe bar 301, but beneath the rear Welding-jaws. Each front welding-jawis connectedto the bus-bar 301 by a flexible I jaw. By this arran ementthe space between Alike copper bar 30% conneots the bus-bar 302 to eachrear weldingthe welding-j aws is eft entirely unobstructed I by thetransformers and freefor passage of strand members 2 or a fabric; Whilein Fig 13 but four sets of welding-jaws are shown, any desired numbermay be employed within the capacity of the transformer. it will befurther evident that, if necessary, I may have a transformer put on eachside of the machine, depending somewhat uponthe numbervof airs ofwelding-jaws it is desired to use. ere two transformers are employed,their respective bus-bars would be independent from each other. I

306 represents a generator or source of power. A. wire 0: runs from saidgenerator and forms a part of the wire or bus-rod :12, carried by thepins. g from the generator to a usbar 307, thatcarries a series ofcontact-points 308.

309 represents a series of plungers each The rimary wire :2 leads Iadapted to be operated by a cam'310, fast'onf the shaft 10, cams 310being so arranged that they will operate the plungers 309 singly,corresponding to the manner in which the cams 125 operate the plungers120. Eachplunger 303 carries at its rear end a eontactpoint 3 1 1,insulated from the plunger and arranged opposite a complementalcontact-point 308' of the bus-rod 307. A primary wire no leads from thetransformer to thebus-rod m. A

primary wire at runs from each contact-point stay-wire 3 in properposition with relation to each other and to the Welding-jaws. Thereuponthe-rail 40 is drawn inward, carrying its plungers and the frontwelding-jaugs to a particular pair of welding-jaws may be I the Of J}closed, as the rear welding-jaw of that pair is forced forward, and theorder in which this connection occurs may be'arranged as desired. in theform as illustrated in Fig. 13

the front or left-hand cam 125 has thrown forward its plunger 120, whilethe complemental cam 310 has closed the primary circuit at that point,the primary circuit being closed now throughout the system. through airof welding-jaws shown in the front .ig. 13, since the forward motion ofthe plunger 1 20 forces the contact-points 18? 168 into engagement witheach other. As the metal of the members 2 and 3 softens, the springs 53force-forward the welding-jaw 70, t us contacting the fingers 106 and95. This closes the magnetic circuit through the magnet 211 of that pairof welding-j aws, causing the disen agement of the latches 208 and 143and the realring of the primary circuit at this point and the cessation,consequently, of the welding action, The cams 125 and 310 are timed topermit the rearward movement of their respective plungers 120 and 309 atthis point, thus bringing the welding-jaws out of contact with the parts2 and 3.

Having thus explained the nature of my invention and described a way ofmaking and using the same, althou h without attempting to set forth allof the orms in which it may be made or all of the modes of its use, whati claim, and desire to secure by Letters Patent,-is i 1. in combinationwith the cooperative elements of a Wire-fabric machine, means forfeeding strand-wires, means for feeding a stay-wire, means for Weldingsaid wires at points of intersection, comprising a series of pairs ofwelding-jaws, means for advancing half of said jaws, means for advancingthe complemental jaws independently to grasp the work, a transformer,and an independent connectionfrom each pair ofwelding-jaws to thesecondary circuit of said transformer.

2. in combination with the cooperative elements of wire-fabric machine,means for feeding strand-wires, means for feeding a stay-wire, means forwelding said wires at points of intersection, comprising a series ofpairs of welding-jaws, means for advancing half of said jaws, means foradvancing the complemental jaws independently to grasp the work, andmeans wherebyone of each pair of jaws has an independent and automaticupsetting movement. I

3. In combination with the cooperative elements of a wire-fabricmachine, means for feeding strand-wires, means for feeding a stay wire,means for welding said wires at points of intersection, comprising aseries of pairs of 'welding-jaws, a single transformer hav-- ing asecondary coil whose two terminals are each extended to form a bus-bar,one-half of said jaws being each independently connectacacia ed to onebus-bar, the other half of said jaws being independently connected tothe other of said bus-bar's. v

4:. in combination with the cooperative elements of a wire-fabricmachine, means for feeding strand-Wires, means for feeding a stay-wire,means for welding said wires at polnts of intersectlon, comprising aslngle transformer, having each terminal of-its secondary coil extendedto form a bus-bar, a serise of welding-jaws, a connection between eachofsald series and one of said bus-bars, a

complemental series of opposed weldingjaws, and an independentconnection be points of intersection, comprising a single transformereach secondary terminal of which is extended to form a bus-bar, a seriesof welding-jaws, each of which is inde pendently connected to one ofsaid bus-bars,

of which is independently connected to the other of said bus-bars, meansfor selectively.

closing the primary circuit through said single transformer for eachpair of weldingjaws, and means controlled by eachpair of welding-jawsfor automatically breaking the circuit upon completion of the Weld.

6. in combination with the cooperative elements of a wire-fabricmachine, means for feeding strand mres, means for feeding a staywire,means for welding said wires at points of intersection, comprising aseries of movable welding-jaws, a series of complemental movable opposedwelding jaws, means for advancing the first series to grasp the work,means for selectively and independently advancing each jaw of the secondseries to gras the work-and close the primary circuit, an means operatedby each jaw of the first series for automatically breaking the circuitupon completion of the'weld.

7. in combination with the cooperative elements of a wire-fabricmachine, means for feeding strand-wires, means for feeding a stay-wire,means for weldingsaid wires at points of intersection, comprising aseriesof movable welding-jaws, a complemental op-r osed series ofmovable welding-jaws, meansv i or advancing the first series to graspthe work, means for advancing each jaw of the sec- 0nd seriesindependently and selectively to grasp the Work, and means controlled bypoints of intersection comprising a pair oil 90 x a complemental seriesof welding-jaws, each power 'meansfor automatically and select-'terrupter device of-that unit.

7 elements of a wire-fabric machine, means for welding-jaws, each ofwhich is movable, a

break-switch, means controlled by one of saidjaws for setting said.switch before the weld-- ing operation, and means controlled by theother of said jaws to open the switch upon completion of the weldingoperation.

9; In combination with the cooperative I feeding strand-Wire's, meansfor feeding a stay-Wire, means for welding'said wires at oints ofintersectlon, comprising atransormer having each of its secondaryterminals extended to form a bus-bar, a series of welding-jaws and aninde endent laminated connection between one o the bus-bars and each jawof said series, a complemental opposed series of welding-jaws, and anindependent laminated copper connection between each of said bus-bars; y

10.:In combination with the cooperative jaws and the other of said'elements of a wire-fabric machine, means for feeding strand-wires, meansfor rfeeding a stay-wire, means for welding said wires at points ofintersection comprising a series of pairs of welding units, means foradvancing aif of said welding units to aspthe Work, means forselectivelyand imIe endently advancing the complemental ha of each welding unittograsp the work, ,a source of power, means for connecting that source ofpower with each welding unlt, and means controlled by each welding unitfor automatically cut-- ting out or disconnecting said unit from the"35.

source of power upon completion of the weld: ing operation oft at unit.v

11. In combination with th e cooperative elements of a wire-fabricmachine, meansjor feeding strand-wires; means for feeding a stay-wire, abonding unit-composed. of two opposed movable members, a source, .ofpower, means for connectin said unit to the source of power, an indepen'entower-interrupter device, and meanscontro ed by' said unit forautomatically actuating said'device; 12/111 combination with thecooperative elements of a wire-fabric machine, means for f feedingstrand-wires, means for feeding a" stay-wire, a senes'of welding unitseach composed-of two movable members, a source of ively connecting eachunit with said source of power, an'independent,power-interrupter devicefor each unit, and means controlled by each unit for automaticallyactuating the inand independen signature in presence of two witnesses.

13. In combination Withfthe cooperative elements of a wire-fabricmachine, means for feeding strand-Wires, means for feeding a stay-wire,means for welding said wires at points of intersection, comprlsin aseries of welding units, each composedo two members, a source of power,means for selectively t y connecting each welding unit with said sourceof power, an independent power-interrupter device for each welding unit,means controlled by "one member of .each unit for operating theinterrupter device 'of that unit to o crate ,the unit, and meanscontrolled by 't e other member of each unit for automatically-operatingsaid a device to disconnect the power from that unit at the completionof the welding operation.

' 14. In combination with the cooperative elements of a wire-fabricmachine, means for feeding, strand-wires, means for feeding a stay-wire,means for welding said wires at points of intersection, comprising apair of welding members, each of which is movable, a source of power, apower-interrupter device, means controlled by one of said members foroperating said power-interrupter deerating said power device todisconnect t e via? to connect the power, and means contro1led by theother- 0f said members for 01p power upon completion of theweldingopera- 4 tion. v

15. In combination with the cooperative elements pf a wire-fabricmachine, means for feedingstrand-wires, -me ans for feeding a stay-wire,means forwel said wires at points of intersection, comprising aseriesofwelding members, a power device, an independent'connection between saidpower device and each of said members, a complemen tal opposed series ofbonding members, a

* power device andan inde endent connection etween each ofsaid mem ersandsaid device,

a source of power, meansifor connecting the latter with said powerdevices, an independent power-interrupter for each of welding units, andmeans controlled y said unit for automatically'operating thepower-interrupter and disconnecting the unit from the

